MIAMI GARDENS — Miami Dolphins veteran guard Jamaree Salyer, a candidate to be a top reserve and a dark horse to push for a starting job, left the field on a cart about midway through practice. The reason for his exit isn’t known.

Wide receiver Caleb Douglas, the third-round pick from Texas Tech who has been fairly impressive during offseason workouts, was riding the stationary bike during 11 on 11 drills later in practice and didn’t participate.

The Dolphins, for the most part, have managed to stay away from major injuries during the offseason workout program. Coach Jeff Hafley, who spoke before Wednesday’s practice session, will likely expound on Salyer and Douglas on Thursday. 

Sieler out; Achane, Jackson work again

Defensive tackle Zach Sieler was spotted riding a stationary bicycle at Wednesday’s practice. Sieler worked on the side at Tuesday’s practice with what Hafley said was “something minor.”   

Among others not participating Wednesday were edge rushers Cameron Goode and Robert Beal Jr., cornerbacks Storm Duck and Darrell Baker Jr., offensive tackle Carter Warren and wide receivers Tahj Washington and Chris Bell. Goode was spotted working on the side with a trainer.

Running back De’Von Achane (shoulder) and right tackle Austin Jackson (foot) continued participating in individual drills Wednesday. Hafley said that would do the same thing Thursday, the final day of this three-day minicamp.

Tight end Cole Turner was also working on the side with a trainer.

Observations

–The Dolphins’ special teams period to open practice Wednesday was their longest special teams period so far in offseason workouts. Hafley said Wednesday that he values special teams greatly.

–Offensive players, including the four quarterbacks, started practice doing ball security drills, during which coaches poked at the ball with a pad. The promising aspect was no fumbles were observed.

–DT Jordan Phillips continues looking impressive in individual drills. He displays power, quickness and speed while and plays with lots of energy.

–Rookie LB Kyle Louis continues showing good things in pass defense packages. Louis has been mentioned as a “big nickel,” meaning a defender who could matchup vs. bigger TEs such as ex-Dolphins TE Darren Waller.

–CB JuJu Brents, who had an interception Tuesday, almost came up with an interception during 7 on 7 drills when QB Malik Willis overthrew WR TuTu Atwell. Rookie CB Chris Johnson almost tipped the pass.

–ILB Ronnie Harrison just missed an interception from QB Quinn Ewers during 7 on 7s. The pass was high and Harrison extended as far as he could to get his hands on the ball.

–WR Donaven McCulley, who has flashed, jumped too early and missed a well-thrown deep pass from Ewers during 7 on 7s. Ewers has been efficient during the offseason workout program.

–DT Zeek Biggers, who is the most physically impressive defensive lineman of the group, shows good aggression during individual drills. He hits the blocking sled with authority.

–RT Austin Jackson continues to show no signs of his foot surgery during individual drills. Jackson moves without a limp and doesn’t favor either foot.

–DE Chop Robinson did a nice job of run defense in 11 on 11 drills by turning RB Jaylen Wright back inside and making the stop. Robinson’s run defense (without pads) has shown signs of improvement.

–QB Malik Willis hit WR Jalen Tolbert over the middle for a gain of about 15 yards during 11 on 11. Tolbert has been a favorite target of Willis’.

–Willis hit WR Malik Washington on a slant for a gain of about 15 yards sooner after he found Tolbert. Willis was in a nice groove Wednesday.

–The Dolphins’ starters did 11 on 11 with 1:15 left from the offense’s 30-yard line late in practice. Willis hit TE Ben Sims for a 40-yard touchdown on the final play of the drill. Willis was 7 for 8 during the drive.

–When the backups executed the same drill, the defense ended it at the 9-yard line on a fourth-and-two.

Stock up

Pass defense: CB JuJu Brents has led the way as the Dolphins DBs continue to get pass breakups at a steady regular rate. The pass defense hasn’t produced an abundance of interceptions but the pass breakups have been fairly steady. Late in practice, however, the pass defense was flagged for pass interference on a deep throw from Willis to Tolbert.

Stock down

Pass offense: This wasn’t necessarily a bad day for the pass offense. But there were a number of dropped passes Wednesday and few long completions. It’s not a big deal, just an observation that reduces the overall effectiveness and efficiency of the day.